One of the questions that hobbyists ask over and over is how to select the value of a current limiting resistor for an LED. Usually the seat of the pants response is: “Subtract 2 V from the supply ...

Every LED has its own characteristics and specifications, depending on the materials used to make them, their colour and many other parameters. As we know the LEDs have a forward voltage, just like ...

If you are seeking to get involved in electronics projects or are already doing so, you may still be getting accustomed to certain concepts – including the importance of LED resistors in circuit ...

Messing around with Arduino can lead to some fun projects — like simple electronic games, lighting or audio manipulation, or even gesture controls for other devices. However, you'll need the right ...

This resistor with bands of red, violet, yellow, and gold has a value of 270,000 ohms (270kΩ) with a tolerance of ±5%. \( \begin{eqnarray*}\text{R}_\text{t ...

After recently purchasing a quantity of SMD LEDs in various sizes and colours, I wanted a board that to which I could apply power via a USB cable and see them all lit up. This lets me quickly and ...

Energy-efficient technologies are revolutionizing industrial, residential and automotive markets, but they ­also benefit today’s boaters. No energy-saving advancement has proven more poignant to ...